That looks a lovely example, DON'T MODIFY IT!!!

Motors that original need too be kept so, its like a living Haynes manual for us OE boys!!!

If you get a min poke your head under the rear arch's,where the thread for kit goes through the arch see if its still got the RED rubber grommets fitted between the fixing nut and the metal of inner arch..
That'll prove how genuine it sounds

Either way proper nice frst, wish mine were in that condition, well in one piece would be a good start